JPH01301490A - Foresail and aftsail - Google Patents

Abstract

PURPOSE: To make a sail in a cross-section shape which meets wind by forming the material means of an aft sail radially-extending from the vicinity of a crew to at least the vicinity of the aft edge of a fore sail part in the fore sail and aft sail. CONSTITUTION: A sail 10 involves a fore sail part 18 and an aft sail part 19. The fore sail part 19 is fabricated out of a series of panels 18A to 18G. The respective panels consists of woven cloth with its warp or weft matched so as to give a directional stable line extending from the head part to the tuck part of the sail as a result of the aft edge 20 of the fore sail part matching the warp or weft. The aft sail part is also fabricated out of a series of panels 19A to 19E. The respective panels consist of woven cloth, and a series of directional stable main lines are extended from a crew 14 to the outside radially so as to cross the aft edge 20 of the fore sail part.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to forces and aftstles, such as headstles, ie jibs, and genoas and mainsles.

Such forces and aftsles are generally triangular in shape and include rough edges, reach edges, and foot edges.

DESCRIPTION OF THE PRIOR ART European Patent No. 0126614A1 in the name of the applicant describes a new type of sail or sail, which sails through a luff area away from the luff edge. , characterized in that there is material in the luff region that provides a substantially continuous line of directional stability extending between near the head of the sail and near the tack. This line of directional stability is also in a direction in which the material exhibits relatively high resistance to elongation under tension.

This concept is equally applicable to the foot area of the sail, and by this means it is possible to create a sail that is more stable and stronger under changing wind conditions. The above invention makes it possible to minimize the tendency of the sail to deform due to bias stretching in the luff region of the sail, which is observed in conventional sails.

For convenience, the sail according to the above prior invention is referred to as (trademark) POW
It is called ERLUPF sail. Therefore, POWERL
Whenever reference is made to UPF sails or POWERLUFF technology, it is to be understood that reference is made to the contents of European Patent No. 0126614AI.

Following the introduction of the POIIERLUPF concept, sailmakers have focused their efforts on matching the luff, leech and foot panels. Inside the desk, stress lines appear as further curves.

The stress lines in each part are from head to tuck (in rough areas),
It extends from the head to the crieu (in the reach area) and from the tuck to the crieu (in the foot area).

By providing a line of directional stability in the luff area, the luff area can maintain the shape of the sail well, and by reinforcing the leech and foot areas, an extremely strong sail can be produced, with the main focus being on the strength of the leech. I can do it. POofERLU
Applying the idea of PF, sail makers have created extremely strong and stiff sails.

However, just like a bird's wing, it is desirable to have a sail that can change its cross-sectional shape in response to changing wind conditions.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved forsle and aftsle whose cross-sectional shape can be deformed according to changing wind conditions, or at least allows a useful choice to the sail maker. be.

According to one aspect of the invention, there is provided a force aftsle with a head, a tack, and a crieu, the force aftsle comprising at least two main parts consisting of a forcel part and an aftsle part, each part being directionally stable. In a forsle aftsle consisting of material means and comprising a forsle part with directional stability of the material means such that the directional stability of the material means in the forsle part transmits stress loads in the rough area to the head and tack of the forsle aftsle. , configuring the directional stability of the material means of the aftsle part such that it extends radially from the vicinity of the crieu to at least the vicinity of the aft edge of the forcele part, so that the material in the aftsle part when the forsle aftsle is subjected to a load and an appropriate tension. A forsle aftsle is provided in which the directional stabilization of the means transmits a significant portion of the loads applied to the creue to at least the aft edges of the forsle portion.

By this measure, the aft edge of the forsle section can become the part that collects most of the load in the clew. Preferably, one or more lines of directional stability extend from near the crieu to at least near the aft edge of the forcel portion of the forcel-aftsle.

The aftsle part (or the forsle part, or both) of the forsle aftsle can be formed from a series of panels or strips of material means superimposed on the surface of the forsle aftsle.

Optionally, the aftsle part (or the forcel part, or both) can be provided with a strip of material means, at least in part approximating a curve.

Optionally, the aftsle portion may be formed from at least three polygonal (substantially triangular) panels located in the vicinity of the crieu. Also, at least one polygon (
A panel of at least three polygons (substantially triangular)
It is also possible to attach it to at least one of the panels (substantially triangular).

[Description of Preferred Embodiments of the Invention] Preferred embodiments of the invention will now be described with reference to the accompanying drawings for purposes of illustration only.

In the simplest form of the invention, straight lines of directional stability extend radially from the crieu in the direction of the aft edge of the forcel section of the sail.

In this configuration, the aftsle section can be made from a single panel, and the lines of directional stability are such that at least one of the lines of directional stability extends from the crieu and intersects the aft edge of the forsle section towards the center of the sail. It is preferable to have

If the aftsle part is made from a single panel, for example a woven fabric, the directional stability lines can be chosen such that the warp or weft threads are parallel to one directional stability line. However, it is preferable to extend a series of directional stabilization lines radially outward from the crieu toward the aft edges of the forsle section, using woven fabric to create a series of directional stabilization lines in a series of panels as shown in Figures 1-7. This can be achieved by manufacturing the parts. Alternatively, the line of directional stability can be formed by a strip of material, such as tape, laid over the surface of the sail, as shown in Figures 8-13. In a more complex form of the invention, a number of directional stability lines extend radially from the clew in a series of curves (or approximations) to the rear edge of the follicle portion. As previously mentioned, these curves can be approximated by a number of straight line segments, as evidenced by a series of panels of woven material with warp or weft yarns aligned with the directional stability lines.

An example of this is shown in FIGS. 3 and 4. Similarly, curves can also be obtained using strips or tape, but
This is as shown in FIGS. 1O and 11.

A sail material of arbitrary length exhibits a given elongation at a given load. One of the objectives is to transfer the loads in the crieu to the aft edges of the forsle section while maintaining the ability to react mechanically to changing wind conditions and thus changing the cross-sectional shape of the leech in a selected manner.

It should be noted that the sail maker may have other ideas about how to transform the cross-sectional shape of the sail and therefore wish to select the aft sail section of his style in order to adjust the "softness" of the leech. be.

In order for the panel to support a fairly high proportion of the total load, the line of directional stability needs to be as straight as possible and as short as possible. If the line of directional stability is curved, greater elongation will occur when the sail is loaded. The stiffness or resistance to elongation of the line of directional stability plays a major role.

As a typical example, the high proportion of straight lines of directional stability in the center of the aftsle section of the sail means that most of the load in the creue is transferred via these straight lines or panels to the forsle section and thus to the head and tack. It means to be done. This is the opposite of the current technical idea of transmitting the load from the creue up the leech and along the hood. In the sail of the present invention, significantly less load is supported by the leech than in the case of a conventional three-shot sail. Currently, the first part of a conventional sail to fail is the leech. Therefore, conventional sail making techniques concentrate on making the leech extremely strong in order to support these loads. The sail of the invention has a significantly longer lifespan than conventional sails because it does not support large loads at the leech. This also means that the sail of the invention does not require as much stiffness as conventional ones. The sail of the invention is dynamic in its response to changing wind conditions. The sail of the present invention has a softer reach than conventional sails.

To explain FIG. 1, the head through is head 12,
It is equipped with a tack 13 and a crieu 14. As shown, the head portion, tuck portion and clini portion may be reinforced with substantially triangular gussets. The other panels of the sail are
Generally, they extend to a portion of the sail corner that is hidden by these gussets. Thus, in the case of a triangular panel extending into the head section, a portion of this triangular panel is obscured by a small triangular section reinforcing the head section 12.

The sail 10 shown in FIG. 241 includes a rough edge 15, a reach edge I6 and a foot edge 17. Preferably, it is divided into two main parts, a force section 18 and an aft force section 19.

The force portion 19 can be manufactured by the method of the POfERLUFF technique described above. For example, a series of panels +8A to 18G
It can be manufactured from.

Each panel is comprised of a woven fabric with warp or weft threads aligned such that the aft edges 20 of the forceel section 19 are aligned with the warp or weft threads to provide a line of directional stability extending from the head section of the sail to the tuck section. For convenience, the thread lines are illustrated by cross-parallel shading along the side edges of each panel.

Note that the force portion 19 can be manufactured using panels of various shapes. It is also possible to overlay reinforcing materials, such as tape. Alternatively, it is also possible to fabricate the forsle section from one or more panels in which reinforcing wires have been previously cast or molded. At present, it is convenient to make the ausle part 18 from a woven pile material, but under normal sailing conditions, if a non-woven fabric is used,
Lines of directional stability can be provided in advance in the nonwoven fabric to approximate the stress lines of the sail between the head section and the tuck section.

In Figures 2-6, the force through section 19 is shown as a single panel in order to concentrate on the fabrication of the aft through section. Nevertheless, the forcel part may be modified according to the forcel part of FIG.
14AI specification (or application specification equivalent to this application)
or according to any other method of providing directional stability between the head portion and the tuck portion.

In Figure 1, the aftsle section is shown as a series of panels 19.
It is preferable to manufacture from A to 19E. Each panel consists of a woven fabric with aligned warp or weft threads, as indicated by cross-parallel shading. This allows a series of principal directionally stable lines to extend radially outward from the crease 14 and intersect the aft edges 20 of the forced portion. These main lines are formed by the seam lines joining the panels. If desired, the radial directional stability line may be extended beyond the aft edge of the forcel section, as shown by dotted line 22, but this may be done by overlaying the forcel panel on aftle panel or by reinforcing it along the seam line 21. This can be achieved by extending the seam or tape into the forced portion.

FIG. 2 shows a similar head sle 25 divided into a force sle portion 26 and an aft sle portion 27. The aftsle portion 27 is provided with a plurality of panels. Some of these panels are substantially triangular panels (10A to 19E), and the negative portions are substantially rectangular panels (including polygonal panels that are similar in shape). A substantially square panel can be divided into two or more triangular panels, as shown at 24A-24B.

FIG. 3 shows a head sle 30 having a force sle portion 31 and an aft sle portion 32.

Although a larger number of panels are shown in the Aftosul section,
These aft-thru panels 33 can be separated by joining lines 35, 36 and 37, so that the directional stability line approximates a curve in the aft-thru section. As shown by dotted line 40, the directional stability line 39 can extend into the forced panel beyond the aft edge of the forced panel.

Figure 4 shows the directional stability line 3 in a part of the aftsle section.
A similar head-sle is shown with 0 approximated to a curve.

FIG. 5 shows a mainsle according to the invention with a forsle section 40 and an aftsle section 41. Similarly, the aft sle portion is fabricated from a series of panels extending radially outward from the crease to form a line of directional stability -i to the central region of the aft edge 42 of the force sle portion 40.

Figure 6 shows a similar mainsle with additional panels added to the aftsle.

In FIG. 7, panel 18A is itself substantially triangular.
A similar mainsle is shown with a strip of reinforcement 44 overlaid on the surface of the forcel portion 40 of the mainsle, consisting of -18E. Therefore, this is a combination of the ideas implemented in FIGS. 1-6 and the ideas shown in FIGS. 8-13. An inverted configuration is also possible, as shown in FIG. That is, the first
The aft-sle portion is provided with a strip or tape similar to the aft-sle portion of FIG. 4, and a panel is provided on the front of FIG. 14 of the type shown in FIG. 1 or FIGS.

FIG. 8 shows a head sle including a force sle portion 51 and an aft sle portion 52. The head sle can be a large panel, or more advantageously a series of panels, 53.54.
It can be manufactured from 55.56. In this case, the orientation of the thread lines of the panel is not as important as the orientation of the directional stability lines of the series of strips of material, such as tapes 60, 61, superimposed on the surface.

The force portion of the headstle is fabricated from a series of tapes 60 that overlap the headstle and form a curve extending from near the head to near the tack. The tape 60D on the outside of the aft forms the outermost edge of forcel portion 51. A series of tapes 61 extend radially outward from the clew. Most of these extend toward tape 61D, but some may extend beyond the aft edge of the forced portion, as shown by dotted line 62. For example, a portion of tape 61 may be extended to contact one or more of the other tapes 60A-60C.

It is not necessary that all of the directional stability lines extending outwardly from the clew intersect the aft edges of the forced portion. For example, line 65 can be extended from the crieu to the tuck to reinforce the foot area.

Similar forces are shown in Figures 7-11. However, in the case of FIG. 11, a line 61 is inserted between each line 61 in order to terminate at a160A in the forcel part of the forcel.
is being extended.

Figures 12-14 show a mainsle with strips of material laid over the mainsle in a manner similar to that shown in Figures 8-11 to form a line of directional stability in the aft sle portion of the mainsle. In addition, in FIGS. 1-13, a strip is shown in the forsle part, and in FIG. 14, a panel is shown in the forsle part.

In addition, when configuring a curve with directionally stable lines, the directionally stable line is a curve that gradually increases in size (with a small radius), so
The directional stability line (line group) approaches from near the center of gravity of the main slew to near the head and tack. This can be understood from FIG. 8, which shows the centroid system as a circle.

These curves can be formed by strips or two or more panels, and straight lines of direction stability can be joined at a predetermined angle so that the line following the joining line approximates the curve.

As used herein, the "main part of the sail" is defined as the area in the center of the sail bounded by the head area and the tack area.

Note that various hood manufacturing methods can be applied to the present invention. For example: (a) It can be manufactured from a panel or a series of panels previously cast or molded by aligning a predetermined proportion of the directional stability lines in the manner described above.

(b) Can be manufactured from a panel or a series of panels fixed or attached to the surface of another material, with a proportion of directional stabilization lines aligned within the panel in the manner described above.

(c) - A panel or a series of panels consisting of more than one layer of material can be produced in some of these layers by aligning a certain proportion of the lines of directional stability in the manner described above.

(d) A strip or tape of reinforcing material may be fabricated from a panel of material means in the forstle section of FIG.

(e) Similar to Figures 1 to 7, from the panel of material means in the aftsle section, fabricate by overlapping a tape or strip of reinforcing material on the material means of the forsle part, similar to the forsle part in Figures 7 to 13. can.

The forsle section of the sail can be formed as a panel or a series of panels in the luff area of the sail, possibly extending beyond the boundaries of the luff area of the sail, and can carry substantial loads in this forsle section. It can be configured so that it can be transmitted near the head and near the tack.

Note that various changes or modifications can be made to the embodiments without departing from the scope of the present invention as exemplified in the claims.

[Brief explanation of the drawing]

FIG. 1 shows a head sle according to the invention, comprising a force and an aft sle, the parts being formed from panels, with alignment of the directional stability lines of each panel; FIGS. Figures 5-7 show a main sle formed from a panel in accordance with the present invention; Figures 8-11 show a force and aft portion of the head sle with a strip of material overlaid on the surface of the head sle; Figures 12-13 show a mainsle according to the invention with overlapping strips of material in the force and aft sle portions to form a line of directional stability; FIG. 14 shows a mainsle in which a panel is provided on the two-up knee sle portion, as in FIGS. 5 and 6, and a tape is provided on the after-sle portion, as in FIG. 10 is forsle aftsle, 12 is head, 13 is tuck, 14 is crieu, 15 is rough edge, 16 is reach edge, 17 is foot edge,! 8 is a forsle part, 19 is an aftosle part, and 20 is an aft edge. Procedural amendment (spontaneous) January 2, 1986 Kunio Ogawa, Commissioner of the Patent Office 1, Indication of the case Patent Application No. 1985-285133 2, Names of the invention Forsl and Aftusl 3, Person making the amendment and the case Relationship Patent applicant name Lernaston Limited 4, Agent

Claims (9)

[Claims] (1) A forcel aftsle 10 equipped with a head 12, a tack 13 and a clew 14, which
The aftsle 10 comprises at least two main parts consisting of a forsle section 18 and an aftsle section 19, each section 18, 19 consisting of a directionally stable material means, the directionally stabilizing material means 18A-18E in the forsle section 18 being provided in the rough region 18. forcel portion 18 with directional stability of the material means such that stress loads of
In the forsle aftsle 10, the material means 18A to 18E of the aftsle portion 19 are configured to provide directional stability so as to extend radially from the vicinity of the clew 14 to at least the aft edge of the forsle portion 18. Forsle aftsle which, when subjected to loads and appropriate tensions, transmits a significant part of the load on the clew 14 to at least the aft edge of the forcele part 18 by means of the directional stabilization 21 of the material means 19A-19E in the aftsle part 19. . (2) One or more directional stability lines 21 extend from the vicinity of the clew 14 to the forcel portion 18 of the forcel aftsle 10.
The force aftsle 10 according to claim 1, extending radially to at least the aft edge of the force aftsle 10 . (3) Forsle part 1 of Forsle Aftosle 10
Forcel aftsle 10 according to claim 1 or 2, wherein 8 is formed from a series of panels 18A-18E. (4) Forsle part 5 of Forsle Aftosle 10
Forcel aftsle 10 according to claim 1 or 2, wherein 1 is formed from a strip of material means 60 superimposed on the surface of forcel aftsle 10,
50. (5) Aftosul part 1 of Forsul Aftosul 10
Forcel aftsle 10 according to any one of claims 1 to 4, wherein 9 is formed from a series of panels 19A to 19E. (6) Aftosul part 5 of Forcel Aftosul 50
Force aftsle 10, 50 according to any one of claims 1 to 4, wherein 2 is formed from a strip of material means 61 superimposed on the surface of force aftsle 50. (7) The strips of the material means 60, 61 are arranged on the forsle aftsle 5 so that at least a portion thereof approximates a curved line.
The force aftsle 10, 50 according to claim 4 or 6, superimposed on the surface of 0. (8) Aftosul part 1 of Forsul Aftosul 10
6. Force aftsle 10 according to claim 5, wherein 9 is formed from at least three polygonal (substantially triangular) panels 19A-19E extending from about clew 14. (9) The aftsle portions 19, 27 of the force aftsle 10, 25 have at least one polygonal (substantially triangular) shape attached to at least one of the at least three polygonal (substantially triangular) panels 19A-19E. 9. Forcel aftsle 10, 25 according to claim 8, comprising panels 23A-23E of ).